CA2042961A1 - Catalyst composition and process for polymerizing polymers having multimodal molecular weight distribution - Google Patents

Catalyst composition and process for polymerizing polymers having multimodal molecular weight distribution

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Publication number
CA2042961A1
CA2042961A1 CA 2042961 CA2042961A CA2042961A1 CA 2042961 A1 CA2042961 A1 CA 2042961A1 CA 2042961 CA2042961 CA 2042961 CA 2042961 A CA2042961 A CA 2042961A CA 2042961 A1 CA2042961 A1 CA 2042961A1
Authority
CA
Canada
Prior art keywords
catalyst
molecular weight
weight distribution
catalyst composition
multimodal molecular
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CA 2042961
Other languages
French (fr)
Other versions
CA2042961C (en
Inventor
Frederick Yip-Kwai Lo
Thomas Edward Nowlin
Pradeep Pandurang Shirodkar
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ExxonMobil Oil Corp
Original Assignee
Frederick Yip-Kwai Lo
Thomas Edward Nowlin
Pradeep Pandurang Shirodkar
Mobil Oil Corporation
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from US07/457,432 external-priority patent/US5032562A/en
Application filed by Frederick Yip-Kwai Lo, Thomas Edward Nowlin, Pradeep Pandurang Shirodkar, Mobil Oil Corporation filed Critical Frederick Yip-Kwai Lo
Priority to CA 2042961 priority Critical patent/CA2042961C/en
Publication of CA2042961A1 publication Critical patent/CA2042961A1/en
Application granted granted Critical
Publication of CA2042961C publication Critical patent/CA2042961C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Abstract

There is disclosed a supported olefin polymerization catalyst composition comprising a precursor and a catalyst activator. The precursor comprises a magnesium compound e.g., dibutylmagnesium, a cyclopentadienyl group - containing zirconium compound, and a titanic and/or a vanadium compound e.g., TiCl4, and an organic compound, e.g., an alcohol. The catalyst activator is a mixture of a conventional Ziegler/Natta co-catalyst and a zirconium sites activator, e.g., methylaluminumoxane. The catalyst is used in the preserve of small amounts of hydrogen to produce polymers having multimodal molecular weight distribution in a single reactor.
CA 2042961 1989-12-27 1991-05-21 Catalyst composition and process for polymerizing polymers having multimodal molecular weight distribution Expired - Fee Related CA2042961C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CA 2042961 CA2042961C (en) 1989-12-27 1991-05-21 Catalyst composition and process for polymerizing polymers having multimodal molecular weight distribution

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US07/457,432 US5032562A (en) 1989-12-27 1989-12-27 Catalyst composition and process for polymerizing polymers having multimodal molecular weight distribution
CA 2042961 CA2042961C (en) 1989-12-27 1991-05-21 Catalyst composition and process for polymerizing polymers having multimodal molecular weight distribution

Publications (2)

Publication Number Publication Date
CA2042961A1 true CA2042961A1 (en) 1992-11-22
CA2042961C CA2042961C (en) 2001-08-07

Family

ID=25674624

Family Applications (1)

Application Number Title Priority Date Filing Date
CA 2042961 Expired - Fee Related CA2042961C (en) 1989-12-27 1991-05-21 Catalyst composition and process for polymerizing polymers having multimodal molecular weight distribution

Country Status (1)

Country Link
CA (1) CA2042961C (en)

Also Published As

Publication number Publication date
CA2042961C (en) 2001-08-07

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